Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5701866 | Malfunction diagnosis device for engine speed controller | Yoshihiko Hirata | 1997-12-30 |
| 5672817 | Self-diagnostic apparatus of air-fuel ratio control system of internal combustion engine | Masaaki Nakayama, Yasuo Mukai, Yukihiro Yamashita, Hisashi Iida | 1997-09-30 |